2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
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12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
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17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Copyright (c) 1982, 1986, 1988, 1993
32 * The Regents of the University of California.
33 * All rights reserved.
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36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 4. Neither the name of the University nor the names of its contributors
44 * may be used to endorse or promote products derived from this software
45 * without specific prior written permission.
47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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59 * @(#)raw_ip.c 8.2 (Berkeley) 1/4/94
62 #include <sys/cdefs.h>
63 __FBSDID("$FreeBSD$");
65 #include "opt_ipsec.h"
66 #include "opt_inet6.h"
68 #include <sys/param.h>
69 #include <sys/errno.h>
71 #include <sys/kernel.h>
73 #include <sys/malloc.h>
77 #include <sys/protosw.h>
78 #include <sys/signalvar.h>
79 #include <sys/socket.h>
80 #include <sys/socketvar.h>
82 #include <sys/syslog.h>
85 #include <net/if_var.h>
86 #include <net/if_types.h>
87 #include <net/route.h>
90 #include <netinet/in.h>
91 #include <netinet/in_var.h>
92 #include <netinet/in_systm.h>
93 #include <netinet/in_pcb.h>
95 #include <netinet/icmp6.h>
96 #include <netinet/ip6.h>
97 #include <netinet/ip_var.h>
98 #include <netinet6/ip6protosw.h>
99 #include <netinet6/ip6_mroute.h>
100 #include <netinet6/in6_pcb.h>
101 #include <netinet6/ip6_var.h>
102 #include <netinet6/nd6.h>
103 #include <netinet6/raw_ip6.h>
104 #include <netinet6/scope6_var.h>
105 #include <netinet6/send.h>
108 #include <netipsec/ipsec.h>
109 #include <netipsec/ipsec6.h>
112 #include <machine/stdarg.h>
114 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
115 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
118 * Raw interface to IP6 protocol.
121 VNET_DECLARE(struct inpcbhead, ripcb);
122 VNET_DECLARE(struct inpcbinfo, ripcbinfo);
123 #define V_ripcb VNET(ripcb)
124 #define V_ripcbinfo VNET(ripcbinfo)
126 extern u_long rip_sendspace;
127 extern u_long rip_recvspace;
129 VNET_PCPUSTAT_DEFINE(struct rip6stat, rip6stat);
130 VNET_PCPUSTAT_SYSINIT(rip6stat);
133 VNET_PCPUSTAT_SYSUNINIT(rip6stat);
137 * Hooks for multicast routing. They all default to NULL, so leave them not
138 * initialized and rely on BSS being set to 0.
142 * The socket used to communicate with the multicast routing daemon.
144 VNET_DEFINE(struct socket *, ip6_mrouter);
147 * The various mrouter functions.
149 int (*ip6_mrouter_set)(struct socket *, struct sockopt *);
150 int (*ip6_mrouter_get)(struct socket *, struct sockopt *);
151 int (*ip6_mrouter_done)(void);
152 int (*ip6_mforward)(struct ip6_hdr *, struct ifnet *, struct mbuf *);
153 int (*mrt6_ioctl)(u_long, caddr_t);
156 * Setup generic address and protocol structures for raw_input routine, then
157 * pass them along with mbuf chain.
160 rip6_input(struct mbuf **mp, int *offp, int proto)
163 struct mbuf *m = *mp;
164 register struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
165 register struct inpcb *in6p;
166 struct inpcb *last = 0;
167 struct mbuf *opts = NULL;
168 struct sockaddr_in6 fromsa;
170 RIP6STAT_INC(rip6s_ipackets);
172 init_sin6(&fromsa, m); /* general init */
174 ifp = m->m_pkthdr.rcvif;
176 INP_INFO_RLOCK(&V_ripcbinfo);
177 LIST_FOREACH(in6p, &V_ripcb, inp_list) {
178 /* XXX inp locking */
179 if ((in6p->inp_vflag & INP_IPV6) == 0)
181 if (in6p->inp_ip_p &&
182 in6p->inp_ip_p != proto)
184 if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) &&
185 !IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &ip6->ip6_dst))
187 if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) &&
188 !IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src))
190 if (jailed_without_vnet(in6p->inp_cred)) {
192 * Allow raw socket in jail to receive multicast;
193 * assume process had PRIV_NETINET_RAW at attach,
194 * and fall through into normal filter path if so.
196 if (!IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) &&
197 prison_check_ip6(in6p->inp_cred,
202 if (in6p->in6p_cksum != -1) {
203 RIP6STAT_INC(rip6s_isum);
204 if (in6_cksum(m, proto, *offp,
205 m->m_pkthdr.len - *offp)) {
207 RIP6STAT_INC(rip6s_badsum);
212 * If this raw socket has multicast state, and we
213 * have received a multicast, check if this socket
214 * should receive it, as multicast filtering is now
215 * the responsibility of the transport layer.
217 if (in6p->in6p_moptions &&
218 IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) {
220 * If the incoming datagram is for MLD, allow it
221 * through unconditionally to the raw socket.
223 * Use the M_RTALERT_MLD flag to check for MLD
224 * traffic without having to inspect the mbuf chain
225 * more deeply, as all MLDv1/v2 host messages MUST
226 * contain the Router Alert option.
228 * In the case of MLDv1, we may not have explicitly
229 * joined the group, and may have set IFF_ALLMULTI
230 * on the interface. im6o_mc_filter() may discard
231 * control traffic we actually need to see.
233 * Userland multicast routing daemons should continue
234 * filter the control traffic appropriately.
238 blocked = MCAST_PASS;
239 if ((m->m_flags & M_RTALERT_MLD) == 0) {
240 struct sockaddr_in6 mcaddr;
242 bzero(&mcaddr, sizeof(struct sockaddr_in6));
243 mcaddr.sin6_len = sizeof(struct sockaddr_in6);
244 mcaddr.sin6_family = AF_INET6;
245 mcaddr.sin6_addr = ip6->ip6_dst;
247 blocked = im6o_mc_filter(in6p->in6p_moptions,
249 (struct sockaddr *)&mcaddr,
250 (struct sockaddr *)&fromsa);
252 if (blocked != MCAST_PASS) {
253 IP6STAT_INC(ip6s_notmember);
259 struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
263 * Check AH/ESP integrity.
265 if (n && ipsec6_in_reject(n, last)) {
267 /* Do not inject data into pcb. */
271 if (last->inp_flags & INP_CONTROLOPTS ||
272 last->inp_socket->so_options & SO_TIMESTAMP)
273 ip6_savecontrol(last, n, &opts);
274 /* strip intermediate headers */
276 if (sbappendaddr(&last->inp_socket->so_rcv,
277 (struct sockaddr *)&fromsa,
282 RIP6STAT_INC(rip6s_fullsock);
284 sorwakeup(last->inp_socket);
291 INP_INFO_RUNLOCK(&V_ripcbinfo);
294 * Check AH/ESP integrity.
296 if ((last != NULL) && ipsec6_in_reject(m, last)) {
298 IP6STAT_DEC(ip6s_delivered);
299 /* Do not inject data into pcb. */
304 if (last->inp_flags & INP_CONTROLOPTS ||
305 last->inp_socket->so_options & SO_TIMESTAMP)
306 ip6_savecontrol(last, m, &opts);
307 /* Strip intermediate headers. */
309 if (sbappendaddr(&last->inp_socket->so_rcv,
310 (struct sockaddr *)&fromsa, m, opts) == 0) {
314 RIP6STAT_INC(rip6s_fullsock);
316 sorwakeup(last->inp_socket);
319 RIP6STAT_INC(rip6s_nosock);
320 if (m->m_flags & M_MCAST)
321 RIP6STAT_INC(rip6s_nosockmcast);
322 if (proto == IPPROTO_NONE)
325 char *prvnxtp = ip6_get_prevhdr(m, *offp); /* XXX */
326 icmp6_error(m, ICMP6_PARAM_PROB,
327 ICMP6_PARAMPROB_NEXTHEADER,
328 prvnxtp - mtod(m, char *));
330 IP6STAT_DEC(ip6s_delivered);
332 return (IPPROTO_DONE);
336 rip6_ctlinput(int cmd, struct sockaddr *sa, void *d)
341 struct ip6ctlparam *ip6cp = NULL;
342 const struct sockaddr_in6 *sa6_src = NULL;
344 struct inpcb *(*notify)(struct inpcb *, int) = in6_rtchange;
346 if (sa->sa_family != AF_INET6 ||
347 sa->sa_len != sizeof(struct sockaddr_in6))
350 if ((unsigned)cmd >= PRC_NCMDS)
352 if (PRC_IS_REDIRECT(cmd))
353 notify = in6_rtchange, d = NULL;
354 else if (cmd == PRC_HOSTDEAD)
356 else if (inet6ctlerrmap[cmd] == 0)
360 * If the parameter is from icmp6, decode it.
363 ip6cp = (struct ip6ctlparam *)d;
365 ip6 = ip6cp->ip6c_ip6;
366 off = ip6cp->ip6c_off;
367 cmdarg = ip6cp->ip6c_cmdarg;
368 sa6_src = ip6cp->ip6c_src;
376 (void) in6_pcbnotify(&V_ripcbinfo, sa, 0,
377 (const struct sockaddr *)sa6_src, 0, cmd, cmdarg, notify);
381 * Generate IPv6 header and pass packet to ip6_output. Tack on options user
382 * may have setup with control call.
385 rip6_output(struct mbuf *m, struct socket *so, ...)
387 struct mbuf *control;
389 struct sockaddr_in6 *dstsock;
390 struct in6_addr *dst;
393 u_int plen = m->m_pkthdr.len;
395 struct ip6_pktopts opt, *optp;
396 struct ifnet *oifp = NULL;
397 int type = 0, code = 0; /* for ICMPv6 output statistics only */
398 int scope_ambiguous = 0;
401 struct in6_addr in6a;
405 dstsock = va_arg(ap, struct sockaddr_in6 *);
406 control = va_arg(ap, struct mbuf *);
409 in6p = sotoinpcb(so);
412 dst = &dstsock->sin6_addr;
413 if (control != NULL) {
414 if ((error = ip6_setpktopts(control, &opt,
415 in6p->in6p_outputopts, so->so_cred,
416 so->so_proto->pr_protocol)) != 0) {
421 optp = in6p->in6p_outputopts;
424 * Check and convert scope zone ID into internal form.
426 * XXX: we may still need to determine the zone later.
428 if (!(so->so_state & SS_ISCONNECTED)) {
429 if (!optp || !optp->ip6po_pktinfo ||
430 !optp->ip6po_pktinfo->ipi6_ifindex)
431 use_defzone = V_ip6_use_defzone;
432 if (dstsock->sin6_scope_id == 0 && !use_defzone)
434 if ((error = sa6_embedscope(dstsock, use_defzone)) != 0)
439 * For an ICMPv6 packet, we should know its type and code to update
442 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
443 struct icmp6_hdr *icmp6;
444 if (m->m_len < sizeof(struct icmp6_hdr) &&
445 (m = m_pullup(m, sizeof(struct icmp6_hdr))) == NULL) {
449 icmp6 = mtod(m, struct icmp6_hdr *);
450 type = icmp6->icmp6_type;
451 code = icmp6->icmp6_code;
454 M_PREPEND(m, sizeof(*ip6), M_NOWAIT);
459 ip6 = mtod(m, struct ip6_hdr *);
462 * Source address selection.
464 error = in6_selectsrc_socket(dstsock, optp, in6p, so->so_cred,
465 scope_ambiguous, &in6a, &hlim);
469 error = prison_check_ip6(in6p->inp_cred, &in6a);
474 ip6->ip6_dst = dstsock->sin6_addr;
477 * Fill in the rest of the IPv6 header fields.
479 ip6->ip6_flow = (ip6->ip6_flow & ~IPV6_FLOWINFO_MASK) |
480 (in6p->inp_flow & IPV6_FLOWINFO_MASK);
481 ip6->ip6_vfc = (ip6->ip6_vfc & ~IPV6_VERSION_MASK) |
482 (IPV6_VERSION & IPV6_VERSION_MASK);
485 * ip6_plen will be filled in ip6_output, so not fill it here.
487 ip6->ip6_nxt = in6p->inp_ip_p;
488 ip6->ip6_hlim = hlim;
490 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6 ||
491 in6p->in6p_cksum != -1) {
496 /* Compute checksum. */
497 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6)
498 off = offsetof(struct icmp6_hdr, icmp6_cksum);
500 off = in6p->in6p_cksum;
501 if (plen < off + 1) {
505 off += sizeof(struct ip6_hdr);
508 while (n && n->m_len <= off) {
514 p = (u_int16_t *)(mtod(n, caddr_t) + off);
516 *p = in6_cksum(m, ip6->ip6_nxt, sizeof(*ip6), plen);
520 * Send RA/RS messages to user land for protection, before sending
521 * them to rtadvd/rtsol.
523 if ((send_sendso_input_hook != NULL) &&
524 so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
526 case ND_ROUTER_ADVERT:
527 case ND_ROUTER_SOLICIT:
528 mtag = m_tag_get(PACKET_TAG_ND_OUTGOING,
529 sizeof(unsigned short), M_NOWAIT);
532 m_tag_prepend(m, mtag);
536 error = ip6_output(m, optp, NULL, 0, in6p->in6p_moptions, &oifp, in6p);
537 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
539 icmp6_ifoutstat_inc(oifp, type, code);
540 ICMP6STAT_INC(icp6s_outhist[type]);
542 RIP6STAT_INC(rip6s_opackets);
551 if (control != NULL) {
552 ip6_clearpktopts(&opt, -1);
560 * Raw IPv6 socket option processing.
563 rip6_ctloutput(struct socket *so, struct sockopt *sopt)
568 if (sopt->sopt_level == IPPROTO_ICMPV6)
570 * XXX: is it better to call icmp6_ctloutput() directly
573 return (icmp6_ctloutput(so, sopt));
574 else if (sopt->sopt_level != IPPROTO_IPV6) {
575 if (sopt->sopt_level == SOL_SOCKET &&
576 sopt->sopt_name == SO_SETFIB) {
579 inp->inp_inc.inc_fibnum = so->so_fibnum;
588 switch (sopt->sopt_dir) {
590 switch (sopt->sopt_name) {
598 error = ip6_mrouter_get ? ip6_mrouter_get(so, sopt) :
602 error = ip6_raw_ctloutput(so, sopt);
605 error = ip6_ctloutput(so, sopt);
611 switch (sopt->sopt_name) {
619 error = ip6_mrouter_set ? ip6_mrouter_set(so, sopt) :
623 error = ip6_raw_ctloutput(so, sopt);
626 error = ip6_ctloutput(so, sopt);
636 rip6_attach(struct socket *so, int proto, struct thread *td)
639 struct icmp6_filter *filter;
643 KASSERT(inp == NULL, ("rip6_attach: inp != NULL"));
645 error = priv_check(td, PRIV_NETINET_RAW);
648 error = soreserve(so, rip_sendspace, rip_recvspace);
651 filter = malloc(sizeof(struct icmp6_filter), M_PCB, M_NOWAIT);
654 INP_INFO_WLOCK(&V_ripcbinfo);
655 error = in_pcballoc(so, &V_ripcbinfo);
657 INP_INFO_WUNLOCK(&V_ripcbinfo);
661 inp = (struct inpcb *)so->so_pcb;
662 INP_INFO_WUNLOCK(&V_ripcbinfo);
663 inp->inp_vflag |= INP_IPV6;
664 inp->inp_ip_p = (long)proto;
665 inp->in6p_hops = -1; /* use kernel default */
666 inp->in6p_cksum = -1;
667 inp->in6p_icmp6filt = filter;
668 ICMP6_FILTER_SETPASSALL(inp->in6p_icmp6filt);
674 rip6_detach(struct socket *so)
679 KASSERT(inp != NULL, ("rip6_detach: inp == NULL"));
681 if (so == V_ip6_mrouter && ip6_mrouter_done)
684 INP_INFO_WLOCK(&V_ripcbinfo);
686 free(inp->in6p_icmp6filt, M_PCB);
689 INP_INFO_WUNLOCK(&V_ripcbinfo);
692 /* XXXRW: This can't ever be called. */
694 rip6_abort(struct socket *so)
699 KASSERT(inp != NULL, ("rip6_abort: inp == NULL"));
701 soisdisconnected(so);
705 rip6_close(struct socket *so)
710 KASSERT(inp != NULL, ("rip6_close: inp == NULL"));
712 soisdisconnected(so);
716 rip6_disconnect(struct socket *so)
721 KASSERT(inp != NULL, ("rip6_disconnect: inp == NULL"));
723 if ((so->so_state & SS_ISCONNECTED) == 0)
725 inp->in6p_faddr = in6addr_any;
731 rip6_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
734 struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
735 struct ifaddr *ifa = NULL;
739 KASSERT(inp != NULL, ("rip6_bind: inp == NULL"));
741 if (nam->sa_len != sizeof(*addr))
743 if ((error = prison_check_ip6(td->td_ucred, &addr->sin6_addr)) != 0)
745 if (TAILQ_EMPTY(&V_ifnet) || addr->sin6_family != AF_INET6)
746 return (EADDRNOTAVAIL);
747 if ((error = sa6_embedscope(addr, V_ip6_use_defzone)) != 0)
750 if (!IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr) &&
751 (ifa = ifa_ifwithaddr((struct sockaddr *)addr)) == NULL)
752 return (EADDRNOTAVAIL);
754 ((struct in6_ifaddr *)ifa)->ia6_flags &
755 (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|
756 IN6_IFF_DETACHED|IN6_IFF_DEPRECATED)) {
758 return (EADDRNOTAVAIL);
762 INP_INFO_WLOCK(&V_ripcbinfo);
764 inp->in6p_laddr = addr->sin6_addr;
766 INP_INFO_WUNLOCK(&V_ripcbinfo);
771 rip6_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
774 struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
775 struct in6_addr in6a;
776 int error = 0, scope_ambiguous = 0;
779 KASSERT(inp != NULL, ("rip6_connect: inp == NULL"));
781 if (nam->sa_len != sizeof(*addr))
783 if (TAILQ_EMPTY(&V_ifnet))
784 return (EADDRNOTAVAIL);
785 if (addr->sin6_family != AF_INET6)
786 return (EAFNOSUPPORT);
789 * Application should provide a proper zone ID or the use of default
790 * zone IDs should be enabled. Unfortunately, some applications do
791 * not behave as it should, so we need a workaround. Even if an
792 * appropriate ID is not determined, we'll see if we can determine
793 * the outgoing interface. If we can, determine the zone ID based on
794 * the interface below.
796 if (addr->sin6_scope_id == 0 && !V_ip6_use_defzone)
798 if ((error = sa6_embedscope(addr, V_ip6_use_defzone)) != 0)
801 INP_INFO_WLOCK(&V_ripcbinfo);
803 /* Source address selection. XXX: need pcblookup? */
804 error = in6_selectsrc_socket(addr, inp->in6p_outputopts,
805 inp, so->so_cred, scope_ambiguous, &in6a, NULL);
808 INP_INFO_WUNLOCK(&V_ripcbinfo);
812 inp->in6p_faddr = addr->sin6_addr;
813 inp->in6p_laddr = in6a;
816 INP_INFO_WUNLOCK(&V_ripcbinfo);
821 rip6_shutdown(struct socket *so)
826 KASSERT(inp != NULL, ("rip6_shutdown: inp == NULL"));
835 rip6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
836 struct mbuf *control, struct thread *td)
839 struct sockaddr_in6 tmp;
840 struct sockaddr_in6 *dst;
844 KASSERT(inp != NULL, ("rip6_send: inp == NULL"));
846 /* Always copy sockaddr to avoid overwrites. */
848 if (so->so_state & SS_ISCONNECTED) {
854 bzero(&tmp, sizeof(tmp));
855 tmp.sin6_family = AF_INET6;
856 tmp.sin6_len = sizeof(struct sockaddr_in6);
858 bcopy(&inp->in6p_faddr, &tmp.sin6_addr,
859 sizeof(struct in6_addr));
867 if (nam->sa_len != sizeof(struct sockaddr_in6)) {
871 tmp = *(struct sockaddr_in6 *)nam;
874 if (dst->sin6_family == AF_UNSPEC) {
876 * XXX: we allow this case for backward
877 * compatibility to buggy applications that
878 * rely on old (and wrong) kernel behavior.
880 log(LOG_INFO, "rip6 SEND: address family is "
881 "unspec. Assume AF_INET6\n");
882 dst->sin6_family = AF_INET6;
883 } else if (dst->sin6_family != AF_INET6) {
885 return(EAFNOSUPPORT);
888 ret = rip6_output(m, so, dst, control);
892 struct pr_usrreqs rip6_usrreqs = {
893 .pru_abort = rip6_abort,
894 .pru_attach = rip6_attach,
895 .pru_bind = rip6_bind,
896 .pru_connect = rip6_connect,
897 .pru_control = in6_control,
898 .pru_detach = rip6_detach,
899 .pru_disconnect = rip6_disconnect,
900 .pru_peeraddr = in6_getpeeraddr,
901 .pru_send = rip6_send,
902 .pru_shutdown = rip6_shutdown,
903 .pru_sockaddr = in6_getsockaddr,
904 .pru_close = rip6_close,